Pg Blazer - Online Test Series 19 - Orthopaedics | Attempts: 1232

2.

The differential diagnosis of lesion, histologically resembling giant cell tumour in the small bones of the hands or feet, includes all of the following except:

Aneurysmal bone cyst
Fibrosarcoma
Osteosarcoma
Hyperparathyroidism

Correct Answer

A. Fibrosarcoma

Explanation

Histological differential diagnosis of giant cell tumour

Brown tumour of hyperparathyroidism
Non ossifying fibroma
Giant cell reparative granuloma
Benign fibrous histiocytoma
Aneurysmal bone cyst
Osteosarcoma with prominent giant cells
Metastatic carcinoma with giant cells

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1

3.

All are true regarding brachial plexus injury, except:

Preganglionic lesions have a better prognosis than postganglionic lesions
Erb’s palsy causes paralysis of the abductors and external rotators of the shoulder
In Klumpke‘s palsy, Horner’s syndrome may be present on the ipsilateral side
Histamine test is useful to differentiate between the preganglionic and postganglionic lesions

Correct Answer

A. Preganglionic lesions have a better prognosis than postganglionic lesions

Explanation

Preganglionic lesions have a poor prognosis. They do not recover and cannot be corrected surgically.

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4.

All of the following statements are true about development dysplasia (DDH) of the hip, except:

It is more common in females
Oligohydramnios is associated with a higher risk of DDH
The hourglass appearance of the capsule may prevent a successful closed reduction
Twin pregnancy is a known risk factor

Correct Answer

A. Twin pregnancy is a known risk factor

Explanation

DDH of the hip is a condition where the hip joint fails to develop properly. It is more common in females, as stated in the first option. Oligohydramnios, which is a condition characterized by low levels of amniotic fluid, is associated with a higher risk of DDH, as stated in the second option. The hourglass appearance of the capsule may prevent a successful closed reduction, meaning that it can hinder the process of manually reducing the hip joint, as stated in the third option. However, twin pregnancy is not a known risk factor for DDH, making it the exception among the given statements.

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5.

The ideal treatment of bilateral idiopathic clubfoot in a newborn is:

Manipulation by mother
Manipulation and Dennis Brown splint
Manipulation and casts
Surgical release

Correct Answer

A. Manipulation by mother

Explanation

Manipulation by the mother is the only recommended treatment in a neonate with idiopathic clubfoot. Corrective plaster application / strapping is tried after 4 weeks of age.

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6.

“Rugger Jersey Spine” is seen in:

Fluorosis
Achondroplasia
Renal osteodystrophy
Marfan’s syndrome

Correct Answer

A. Renal osteodystrophy

Explanation

Renal osteodystrophy is a condition that affects the bones due to chronic kidney disease. It is characterized by abnormalities in bone mineralization and structure. "Rugger Jersey Spine" refers to a radiographic finding where the vertebral bodies appear dense and have a characteristic striped or banded appearance, resembling the stripes on a rugby jersey. This finding is commonly seen in renal osteodystrophy due to the abnormal deposition of calcium and phosphate in the bones.

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7.

Which of the following conditions is least likely to present as an eccentric osteolytic lesion:

Aneurysmal bone cyst
Giant cell tumor
Fibrous cortical defect
Simple bone cyst

Correct Answer

A. Simple bone cyst

Explanation

Simple bone cyst presents as a central lytic lesion.

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8.

All the statements are true about exotosis, except

It occurs at the growing end of bone
Growth continues after skeletal maturity
It is covered by cartilaginous cap
Malignant transformation may occur

Correct Answer

A. Growth continues after skeletal maturity

Explanation

Growth of an exostosis stops with stoppage of growth at epiphyseal plate. (It is not a true neoplasm)

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9.

Brown tumors are seen in:

Hyperparathyroidism
Pigmented villonodular synovitis
Osteomalacia
Neurofibromatosis

Correct Answer

A. Hyperparathyroidism

Explanation

Brown tumors, also known as osteoclastomas, are a rare manifestation of hyperparathyroidism. They occur due to excessive parathyroid hormone (PTH) production, which leads to increased bone resorption. The excessive bone resorption causes the formation of cyst-like lesions filled with fibrous tissue, blood, and hemosiderin, giving them a brown appearance. These tumors can occur in any bone but are most commonly seen in the spine, pelvis, and long bones. Other conditions listed, such as pigmented villonodular synovitis, osteomalacia, and neurofibromatosis, are not typically associated with the development of brown tumors.

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10.

Which of the following malignant tumors is radioresistant?

Ewing’s sarcoma
Retinoblastoma
Osteosarcoma
Neuroblastoma

Correct Answer

A. Osteosarcoma

Explanation

Osteosarcoma is highly radioresistant

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Pg Blazer - Online Test Series 19 - Orthopaedics

Quiz Preview

The differential diagnosis of lesion, histologically resembling giant cell tumour in the small bones of the hands or feet, includes all of the following except:

All are true regarding brachial plexus injury, except:

All of the following statements are true about development dysplasia (DDH) of the hip, except:

The ideal treatment of bilateral idiopathic clubfoot in a newborn is:

“Rugger Jersey Spine” is seen in:

Which of the following conditions is least likely to present as an eccentric osteolytic lesion:

All the statements are true about exotosis, except

Brown tumors are seen in:

Which of the following malignant tumors is radioresistant?